NEET UG PHYSICS MCQ: THERMODYNAMICS

Option A ($\frac{n}{n+2}$) is correct because the ratio of specific heat at constant volume ($C_v$) to specific heat at constant pressure ($C_p$) is given by $\frac{C_v}{C_p} = \frac{1}{\gamma} = \frac{n/2}{n/2 + 1} = \frac{n}{n+2}$, where n is the degrees of freedom.